php dom xml problem

Problem :
Warning: domdocument::domdocument() [domdocument.domdocument]: Entity: line 1: parser error : Start tag expected, '<' not found in C:\xampp\htdocs\xyz.php on line 8.

solution :
php_domxml.dll extension has to be commented in the php.ini file under apache/bin.(or
whatever php.ini file is loaded for you, find out through phpinfo()).

source.